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3 years ago

A sample of sodium reacts completely with 0.497 kg of chlorine, forming 819 g of sodium chloride. what mass of sodium reacted?

Chemistry

1 answer:

Slav-nsk [51]3 years ago

8 0

Sodium reacts to chlorine and gives NaCl. The balanced reaction is given below:

2Na + Cl₂→ 2NaCl. Two moles Na reacts with one mole Cl₂ and produces two moles of NaCl. Atomic mass of Na= 23, Molar mass of Cl₂= 71, molar mass of NaCl=58.5.

So, 46 g Na reacts with 71 g of Cl₂ and produces (2 X 58.5)g = 117 g of NaCl. As per question Na reacts completely which means Na is the limiting reagent. So, number of moles of Na reacts = number moles of NaCl produced.

NaCl produced= 819 g= (819/58.5) moles= 15.69 moles. Therefore, 15.69 moles = 15.69 X 23 g=360.87 g of Na reacted.

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mrs_skeptik [129]

Answer:

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Explanation:

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3 years ago

2. A chemical analysis of a sample provides the following elemental data:

Vadim26 [7]

Answer:

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Explanation:

first divide their mass by their respective molar mass, we get:

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now divide everyone by the smallest one of them then we get

C= 1.5

H= 3

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since our answer of C is not near to any whole number so we will multiply all of them by 2

so,

C3 H6 O2 is our answer

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matrenka [14]

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Elis [28]

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<h3>Further explanation</h3>

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• s: 2 electrons

• p: 6 electrons

• d: 10 electrons and

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DaniilM [7]

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Hope that helps.

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3 years ago